Cane-crushing apparatus



" Npv. 11, 1930. F, MAXWELL 1,781,186

GANE cRusHING APPARATUS Fii'ed June 25,- 1927 6 'sheets-sheet 1 Nov. l11, 1930.A F MAXWELL l 1,781,186

CANE cRUsHING APPARATUS y Filed m3625192? esneet's-sneet 2 NOV. 11,1930. F, MAXWELL 1,781,186

GANE CRUSHING APPARATUS Filed June 25, 1927 6 Sheets-Sheet 5 (juntan Nov. 11, 1930. F. MAXWLL GANE CRUSHING APPARATUS Filed June 25, 1927 6 Sheets-Sheet 4 NOV. 11, 1930. F, MAXWELL 1,781,186

PAR

June 25, 1927 '6 Sheets-Sheet' 5- v vv Y f 1111- 1|111 .1111. .11.1- .1111111111111^27 m gigi 7 Nov. 11, 1930. l F. MAXWELL 1,781,186

CANE CRUSHING APPARATUS Filed June 25, 1927 6 Sheets-Sheet 6 31a/vento;

` atto/cm1, v

Patented Nov. 11, 1930y 'cANn-Cansrr-rne are .Application filed .rune 2a,

This invention relates to sugar cane crushf indapparatus, A and more' -vparticularly totj iinl proveniente in thattype ef.` cane erushing'ap-e p'aratus wherein the cane is crushed and'tlien comparatively finely Shredded before it is .fed to subsequently arranged uice expressing mills. While the cane is in this shreddedconiY dition5 it is generaily desirable that it, be fed and deliveredto a juice expressing mill rapidly ls-possible The first mill, there-` fore, is preferably arranged as closelyl adjacent the crushing and shredding unit asis' practicable, fand means is provided whereby` the cane may be rapidiy carried away frein the'crushing and shreddingunit and forced toward the rolls of the mill, i i

`The cane crushing apparatus of Vthis inventioncont'emplates the `use of a new and improved form of shredding roll, in combination with apa-ir of pressure rollers which may be grooved` orne-t, as desired. The machine illustrated, issimilar in type vto thatshown and described in mycopending appli-cation, SerialNoLfQa?, filed March Q ,V 1923,-a1`1d in .the general' Combination of parts, in the structure of theprincipal mechanisms andthe novel; combination thereof withA a mill and associated parts.` InV addition Jto'tlLese, fand in combination*therewith, av nove'iforin of shredding roll having av novel formvof teeth thereon b v'the use of which more'eiiicient shredding of thecaneis obtained; is also contemplated. f, I 1 y The principal object of this invention is to provide in cane crushing apparatugan improved and efficient form of shredding rol...

Another'object of thi'sinvention'is to provide upon the peripheryof. a shredding roll,

rapidlyfeed the shreddedcane away from the crushing and shredding unit7 and to generally improve the fstruct-ure,,of`| this type ,fof Cane' .andere apparatus.. whereby the. @are Financie Mnwnnn;IorpwAnLrNe'roN; artemisia in some ,respects isan improvement thereover .Y

Y, .'FigfV 11 is a sect-ionen lline .11;11 of an' improved form of tooth vand Ato arrange A Tfrs 19er. sarai No. 200,393.1

will be Y more quentiuiceenpressing operations.k t -To these and other endsthis invention con,... sists in the knovel features and combi,nations ofgparts `to be. hereinafter ,described and-55 claimed. e 137;, .i i in@hea'eelarfmyinedrawings# 'f Fig. 1is a sectional sideeievatioi Oia/sugar canej crushing. aprparatiis, embodying the 'turesgof'this invenN on; l A i Fig. 2 isa View of tlie'same, looli direetioni-'.ofrarrow?,'of 1:; Y Y Fig. 3 V"s a sectiionfonlineEB-f 4 isv an enlarged section ,l viewb .fera i 'l GU scraper-bar.foroneofthe Crusher rollswandl G51 of the associated parts, as shownin'Fi roll, adapted for use iii/.the rIriachinei'ifQths u invention; f

Fig.'10 isan end view ofithevsarne; i

visfanQ,r1lai ed. 'longitfudinal.sec-ef l tion throughutherollonline 12%1'2ofFig@ z .Figll is-a section on linel-r-lofFig 12';

rig. 113A riale; g, Fig. 14 is an end viewofa somewhat modi-V fied form ofshredder 11011;..l y l .L ,Figg15 is across sectionalviewbf the roll Shown in Fig. 14; Y A e Fig. 16 is a longitudinall sectional; viewbf., thesame; i i l gf l" ig..17 is .a section on line 17e-17 'offfllig` illustrate thefeatliresfoffthisinventiomgen- 100.l y

9l; S0, i

section .on of 85 ce' i 18,is view. showing y anY arrangement 95 1() and v11, a shreddingroll`12,=all lof which are rotatablylmounted between standards 13v and 14, fa set of 'juice'. expressing rolls 15, 16

- Vand 17. rotatably inounted betweenv standards .18,an'd l1'9,jand a'cane `feeding Ineehanisin20.l

.v Suitable. cane 'guiding means, such fasthe` Y chutes 21 and 22 respeetively','v guide the Cane Y i toifthe erushing'rolls 10 and 111,2 andfffom .them to the mill Vrolls and 16.*'A I i YThe Crusher rolls 10and`11; in this. instance," l areeaehprovided with peripheral grooves 23,v

' 'finterseeted by substantially longitudinally l the other rollA in tliegroove 2v3"therebft-Ween;

The. seraper .bar 26 suitably 'supportedbe- 4 tweenjthe 'standards '13 and Handhaving a toothededge27; andanapron pla`te128,;.is f prxnfided.-v I 'Iheteethz2-9 of the Vscraper .bar

26 feed"intoijthegrooves23V ofA thef roll 11 1 to relieve them-.of theorushed ean'e adheringVV extendingvgrooves 24. Y, The:` peripheral grooves 23j! are preferably V-shapedfineross i section"` Vand/'form' peripheralribs 25j onfeaeh roll. g Theribs'25-oione rollarefadafp'tedtopv ineshj between fthe '1 corresponding'. ribs "upon Vpthe'retolV shredderV roll 12"is provided with af pluralityxofiteeth 30'which are se'euredftoVV thejrollfandarranged thereon'in rsuch la inan-A tovthe criisheriolls 10 and 11' andthe seraper` iba-reefs@ ammieteethfeo of Vthe11461171112 will' Qafct in cooperation withgboth` the roll'11"and n thebar26tofshied cane passing between lhein 'Y andthe roll A12v PreVferably,fjthe afrran'geiV ment"Y is; suchf'thpati the greater yanioufnt oi f shreddingfwill stake pflacebetweeiiithe froll" and,th'enscrapeffbaf'2e and substantially' asfsoon as the 'cane' emerges from th'eQrolls` 1o rand friend; is' relieved '.fromfhelviroii j at 1 kajv romp arativelyffslow irate 'of nspejefd .by

v:wardand between the rolls dj i juice expressing'mill.

lrvlandrl of the Y iIlgly connected together bythe chain; 43 .j I PC'nWhCh QT@ SGCured carrier and Jeeding lyexte'ndingshoulder 45, which engagesthe bars-4 4. lilaehfbar 44 presents a Vtransversef j Y i p Thek sprocket wheels'37 and-38 are driven ati 'a somewhat faster speedthan the rolls 15 andY `16,'` being' geared thereto'by a-.chafin 46en5 f gaging a sprocket 47 secured upon the shaft 418: of theroll 16, and asprooket lii-rotfitably i handleY m/operate al clutch 51 this -pllllpos'gf ik Cured to the aid-j aeent 'stan-dard e and-VeXt-ends llaeress the ipassagewayf54 from 'theifend'of/fone` N j Wall iof rtlie passageway tothe other.V The .V mounted 'upon (the shaft Driving conneo- Y* Hf v V'tion betweenthe sproeket-v 49 andthershaftgf 39, is ,obtainedby manipulation ofV 'aelut'ch suitableffors'l ,"oapl pieeer? is provided with an Vopening a boss 59 formedupon Vtheo'uterV face off-the bearin'gl blookf525v andA abuts the outer aeef ,thereof adj aeent the pveripheryj of( thisV bossi: `A- studjlboltj 46Ovvis ksecured tOjTthefboSs 59-an'd11 e Xtendsioutwardlyy throughtlie spring andI e n through'acrossbar 61; -'Anutl62 engages.A Y 1 the'fouterend ofthe bolt;GOfandijlirnits the?Y action ofthe 4sj'iririggS against the block 52,1, adjustably'"retaining,thebloel `a"gainst`--ifn'-y 1 V"ward mov'einentin exjeessfofa predetermined g y amount'. Thebrossgfbarl i's-'adjustably se- 'f yTheeross'bar/61y may beidisposed Iinvf'arious l' i' i positions-.with respect Vto the cap'piecer57by Yproper. inanipiilationofa'nut 64assoeiatedf *with* the bolt. f Proper adjustmentof both 115'v maybegeieelted;` to"varyfthe'jtension of the springv 58.*` Adjustment of either, indi-vijdufk f. 1 Q allyjjperinits the dispositioniof thebea'ring32J L` ,Jl

4the cross bar 61jandzthefnut' 62 onli-the bolt? 6 0 cally,v for instance,whenftheassoeiated parts arevtlireatenedxby the delivery thereto of ank excessiveramountlof Cane. ,Y

fronijth'efseraperrbait 26and2roll 11.: VThe whieli-per'fnits Vthe passage-oa coiled V{goin} v 'i pression spring 58.,V The springw58 iits' about vaway*freni these associated'parts-automati-;V e

Y. a t ."j .The seraperfbarf27and apron 28are se-QI kcured g to supportingbar(Sg-rotatably VV frnunted between the Vsta ndards' 13 'and w14. Y i An arm 664.` secure-dito v, the 'barj465eXtends` downwardly therelronfi-v at each p the f1 y vided with a threaded portion 70, adapted to be received and to passthrough brackets Z1 and ,72. Thev bracketsy 71 a-n.dj.72. are disposed one at either side of the arm 66 and are .pivotally secured to the adjacent standard'.

A nut 7 3 threadedly engages the portion 70 of theserods, andbylmanipulaton thereof permits the adjustment of the-scraper'bar 27 toward or away fromnthe roll 11 andth'e y roll 12V.

The shaft 39 of the feeding mechanism 20 shown in Figs. y and', and -ofthemodified arrangementthereofzshown'in Figs; Tand 8, is supported by bearings 74, one secured `to cach of the standards 13 and 14. The bearings 74 are each provided with meansfor adjustment so that' the sha-fti39inay be-moved toward or awayffrom'th'e shaft'42 in Figs. '5 and i6,or shaft -7 5 in Figs. 7: and 8. This means L comprises elongated openings 7 6' in the base-77 of the bearing 7 4, through Which -pass bolts IZ8`for'securing the same tothe reffspeetive standard. An. angle plate 79is provided and secured to vthe standard adjacentV each bearing 74.1 An'adjusting screw 80'feX- tends fi'onitheV angle plate 79 toward and into engagement with the adjacent bearing '14. The "proper manipulation of the adjusting `screw 80, after loosening the bolts 78,'pe`r-- mits the `Inmeinentiof thebearings 7 4to adjust the shaft 39, as desired?! The shaft 42 of Figs. aand 6, vand shaft 7 5 of- Figs. 7 and 8, are supported by abearing (memberrSl, which in thefiirst instance islse- .cured to' the side Walljpla'tes ofthe cane chute 22, and in the latterinstancefto the standards 1,8 and i 19fby means ofV bolts. 82,

which pass through 'elongated Vopeningsf83 in the members 81. Due to Vthe provision/of the elongated Aopenings 83, the members! 81 are' adjustable tow/ardenti away from the shaft 39. `Wh'ereby'the relative positions of" Vthe `shafts 39 and 42 inl one` 'instance,f= and shafts 39 and 175? in the other instance,- may be variedi By the provision'of'the above ad;- justing features with respect tothe mounting "of the' shafts39, 42 and 75, the feeding mechanisni may'be disposed'in various positions with respect to the rollsrof the niilhso to l permitan efficient feeding of the'sh'redded `cane 'toward Vand into the saine; t

The'roll 12is providedfvvitha plurali'tyof longitudinally extending grooves 90, Which are equally spaced about the periphery thereof;l offY the ygrooves f is V-forin'ed AWith Vstraigl-it sides 91 and 92, and aiflat bottom 93.

' Spaced` :from: the groove'dA bottom '931 and V`at each' side thereof,I the groove is provided with .an V-exten'siorr194,.V sides.. 951 and' '-96 formedby thisr eXtension converging toward the periphery of the roll and intersecting the straight rsides 91 and 92 below. the roll pe? y riphery, forming a dove tail` shaped` passage` and the periphery ofthe roll. I

Y Each of the grooves 90 communicate-s at Wayinterniediate therbottom ofthe groove' eachend of the roll With a counterv bore 97 formed therein andvhaving its aXisFparallel With the'aXi's of thefroll.l An'end clamp 98 ,Y isdisposed and fitted in each ofthe counter bores 97. The portion of theouter periph ery of the clamp 98,v adjacent theperiphe'ry l of the roll, overlaps the adjacent end ofthe groove 90. Each clamp-98 is providedivith anvo-pening 99 through .Which alstud 100 eX,-k

. tends. The stud l100 is threadedinto the end of thepvroll 12'` and risengaged.byay nut 101, which rcooperates therevyithQto-'force the lease it therefrom.;l In this instancefthejnut 101 is set into the clamp 98 .Withinacounte-r bore r102 therein. `Apal-nut 103 isapreferably threaded 'upon the end of the stud 1500,l which extends beyond the nut '101 to vclean the threads thereof, andfth'us `assist in; thefrenioval of the nut 101. w

Each of the teeth 30 is provded'vvi'th afbase portion 104, generally?rectangularin shape and having 'opposed straightl sides105 and 106, which fit into the groove 90,1be`tvvee'n the sides 91 and 92fthereof,',vvith theibottom y107 .of the toothresting uponfthe groovefbottom 93.2. The other sides of thebase portion 104 taper vfrom the bottom 107 yupvvardly Yand I to- Ward eachother as at 108`alnd 109.- Continu# tooth is provided `With 'a blade portion '-110.-

Sides 111 and y112 of thepblade'p'orftion 1'10 continuejfrom the tapered",sides'108'and- 109` of the baseportion, and't-aper'tdward each' other toward the outer end thereof.` Y -rlic'lj'ary cent the' `outer end of the,bladegportionffthe ilo sides'111 Vand'f112 taper tofagreaterwjdegree and 4converger'to ,form a substantiallyfkeen portion that continue from-the straight sides -and 1061of'the`b'ase portion *104, therblade port-ion sides 111 and 112 converge toward each 'other i to form substantially 'keen "side edges. -A Spacing blocks "115i ofv suitable? length are provided and `formedto itinflthe dovetzil shapedv portion 'of the groove 'QO-,bet'Ween-the side-s' 95 andi 96 thereof. The "blocks -11'5 are number of endblocks 1-18: is -provided,` each having a tap'eredend 119 an'dfagstraight'end 120, the latter beingA provided for. ment with the clampf98. Y l

kposed upon Lthe roll 12, :adjacent one Vofjthe ends thereofythe'clarnp 98 is groov'ed'asjat V121,-and7filler pieces 122 are provided and pinnedto theY clamp by suitablefnieans 123.

, aft 124', to'provide clearance for'the nut 101. f 'Ijhe teethfBO are' assembled upon' the roll 12 'being yeitherV vspaced-'Hfrom vthe clamp 98 by ayblocl; 118,"set intoa groove in the: end s oftheolar'np. 98 orf inv agroove 1217in the ""andfthete'eth 301 asfdesired in thegr'oove 90, vthey inlay f be securely clamped Y and .secured theVv std 100%130. draw the clamps-98 toward eacli'iiother and toward 'the end. off *the roll i 12; ,Thev cooperationbetween thedovetail shaped portion vof the groove 90 and-fthe en- ,i ga'ging sidesofthe spacejblock-l-l, prevents l these f Y blocks from .dis`place1'n'ent'` radially.

' The engagement' ofthe-ends -llaand'l'l of tooth,prevents thefdisplaceinentof the 'teeth radially '-frOIIL theroll. .#Byjloosening theV clamp fQSateitlerLendjof the rollrany',oiieoii, y Y

' f ating a1 tendencyV to choke if 'This'fl latter r arel `rangernentn1aybe termed herringbone a VV-'rangementofteetll'f- .A thefteethin the: series otteetheinltherespec- Vanother readily'insertedinitsplace:

l r'i'Byvarying thedlspositio ofthe teeth 3K0" longitudinally in veach groove,V nof tooth upon `be accomplished :bylocating the first tooth Y i atfonefeln'd ofieach groove Ia greater'f or less fdilstance Qfrona that fen'd,` Y and :using space 'teeth Qineachgroove are equallyspacedapart Y B y'su'chfan-(arrangement a niaxununrarno'unt of "shreddingfwill 1 be; obtained g inasmuch :as

` each tooth'awill f'bev individually a'c-ting Vuponv notheij/ the l'canefandfnot fo llowin fg` 4 1 clusive,`i'slprovidedwith'grooves131 on the if peripheryfthfereof, teeth 1B21Land.v spacezblocks 133', all; of f which;` are generally 1 similar s y Vstructureand shape to #the correspon-ding Y parte described f above; The clamp 'mem-j .bers lllareiofjawsor'newhat modified forni,LV

-.-althoug' h thei use and roperationthereof is 'in' eachend facef into'fwhichYthe.6121111395S 134 generally as shown in l'F ig. 12, theirst tooth Y clanp98;-*The'requirednumber of spacedv 'bloclrsl115 aref' longitudinally inserted ji'n t0` Y s `the dove vtail" shapedportion of :thegroov'e "'90, V-andatooth 3011's then placed'radiallyy Y v. apitch equal to the axialdi'rnension betweenk Y 115.**Havingassembledthe space bloclr's-ll r row.- A v.This arrangement V'-"illustrated in VIn other cases,V willibe prete'fabley to range the teethonthe rolls in such a'zinanner; VVVthat the `spiral formationfwill begin at eachjf QtoithezrollllQby tightening the nuts101 upon the spa'ceblocks4 115,with the tapered sides' create a Slight tendency of, the cane tozfeed Y 10e and-1091er the baserlportion 1101 (if4 each u -ti0 `n.` This wlll'fio'bvlate' any npossibilityof f Ytifvegrooves mayA be f radially removed :and Y the periphery ofy the rollis` at an'y time -pel- 1 ripherallyfinfline with another..-This-n1ay f these rolls andbeforeitcainaexpan'drand'in bleeks'11f5of such length that ythe subsequent Y the teeth SO-onv the shredder-,roll12-attackif ing y3 2 to recede,v carrying with v it -thesh'red--4 Y' arefittedg .f Each 'oflthesefgrooves 20011111111-,-

' thpne o/fgthegroeves.1311;A stud vrierjbars44 acting-,asabovefdescribed; upon 130 10011;'126 and a; cooperating nur 1271ferfdraw`- Ving the clamp-134 toward the end 'c'ifthe'rollY f the engagement'of the inner end of the jclarnp'with the shoulder 128', andv draws the 1" .Outer end offthefclamp 134: `into'clanipingjj FR space Vvblock 133, disposed Vinjthe adjacent groove 131;: L, Y Y rllhe teeth `3() and 132 maybe arranged on Y the shredderroll so'aslto beineiect'in spiral i f formation;V v`Insome cases theV Ateeth followers() engagement with the adjacent'ftooth 13 2 ory Voneanother about the roll throughout Aits",

length in one substantially sharp" spiral/ of v a tooth of'one'row andatooth iolfrtheinext fes Y Figxis; 1

end of the :rolland lead toward the centerorzgeo Y intermediate porltionfthereof*n-Oppositelyf y V directed spiralsf;v lvThis latter arrangement is u `illustrated in Fig. 19. 1f-particular advenir* tage of the'latterarrangernentis thatfitvi/ill I towardr the .roll Vcenter or intermediate 'por-- thecane packinggup at either endsof the roll betweenthe latteri andthe ,casingyandfcre-j Y Theoperation' athecane cruShingappa-V ratusabove described; isfasfollows Sugar' .caneor thelike, i's'guided` downfchuten21f`@ and' passes between thepcrusher vrol-ls v10 and f 11,where itfis -liressed"and,crushedThe crushedl cane fthen" femerges fromV lbetween lsomeinstances, whilefitj is VV'still held thereby,

it4 and tear, shredandotherwiselldisiltegrate it into,` :a thoroughly .shreddedf and fibrous Y der lroll 12 wl1enever 'the ,f massvr of @crushed cane threatens to overcrowd chute, 22 andthe 'apron` plate '28: f l The *scare this mass of cane fibres, feeds the saine rapidly toward the rolls l5 and 16 and forces it into the bite thereof. i

The above described structures and combinations thereof form an efficienti sugar cane crushing apparatus by which a maximum amount of cane may be prepared for subsequent juice extracting operations and thereby lto obtain a maxiniuinamount of sugar juice therefrom by the consumption of a minimum amount of power. The cost of operation and upkeepof a device emy Y bodying the novel features of this invention is comparatively small, due to the provision of theV adjustable features of many of theV mechanisms included and the ease by Whichothers may be replaced when broken or dam#- aged, during the operation thereof.

While I have shown and described a preferred embodiment of invention, it is to be understood that the same is not limited to all of the details shown, as many modifications and variations are possible, which will-lie -within the spirit of the invention the tooth and adapted to engage said teeth to secure them to said roller.

2. In cane crushing apparatus, a roller having a groove extending lengthwise thereof, andan opening in the end thereof complurality Vof spacing blocks shaped to litv Agether in the groove to municating with the groove, spacing blocks in the groove, teeth between the spacing blocks, said teeth being provided with ends dverging in the direction of the spacing blocks, and means inthe end opening of said roller adapted to clamp the blocks and teeth together to secure the teeth to said roller.

3. A cane working roller, comprising a cylindrical body having a longitudinally extending groove in the periphery thereof and opening radially outwardly, a plurality o f Ameans being slidably engaged by said roller Vand'adapted to clampingly engage the base portion of said teeth.

5.V In cane crushing apparatus, af roller having a pluralityof removable teeth extending from'the periphery thereof, each of said teeth having avbase portion, the baseV p'ortion'of each tooth being adapted to rap dially enter an opening in saidroller, a space block betweeny each 'pair of said teeth, said space blocl'being slidably engaged by said roller and being adapted to engage saidA base portion of each of the adjacent teeth to secure them to said roller.

A tooth for a cane working roller, said tooth having a base portion and a blade portion, said base portion having longitudinally extending straight edges and tapering sides,

said blade portion having longitudinally extending `cutting edges and sides, the cutting edges of said blade portion merging into the straight edges of said base portion, and the,"

sides of said blade portion merging into the tapering sides of said base portion.

'7. A tooth for a cane working roller, said ltooth having a base portion and a blade portion, said .base portion having longitudinally extending straight edges and tapering sides, said blade portion having longitudinally extendingl cutting edges and sides, the cutting edges of said blade portion merging into the straight edges of said base portion, and the sides of said blade portion merging 'into a-,cutting edge across the outer end of said nally extending cutting edges thereof.

In witness whereof, I have hereunto set my handthis 20th vday of Ma 1927. i f FRANCIS M toV the tapering sides yof said base portion, and y Y blade portion interconnecting the longitudiica teeth insertable radially into said groove, a. i

said groove and insertableV longitudinally thereinto, a space bloclrbetween each tooth and the next, and means at the end of said roller to clamp said teeth 4and blocks tosecure Vtheteeth to t-lie roller. f

4. In cane crushing apparatus, a roller having a plurality of removable teeth Vextending from the periphery thereof, each of said teeth having a base portion, the base portion of each tooth being adapted to radially enter an opening in said roller, and means to secure the teeth to said roller, said 

